This was volume 203. The final one.

If she crashed, there’d be no diary entry after this one.

The practice diary wasn’t a notebook anymore. It was the K-DRIVE itself—every run, every near crash, every impossible turn recorded in its black-box memory. She’d named the file system Hiiragi’s Practice Diary on a whim as a teenager. Volume one: learning to balance. Volume thirty: mastering the corkscrew drift. Volume ninety-two: breaking the district speed record.

But somewhere in the city above, a girl who was no longer a girl walked toward her future. And if you listened closely, you could still hear the echo of an engine—faint, impossible, and absolutely free.

She turned and walked away, leaving the K-DRIVE resting in the middle of the lobby, still warm, still humming, still dreaming of speed. Behind her, the screen faded to black—then lit up one more time, just for a second, with a new file name:

Two thousand, one hundred forty-seven days. She’d started this diary when she was fourteen, a scrawny kid who could barely keep the anti-gravity driftbike from scraping its underbelly against the tunnel walls. Back then, the K-DRIVE had been a salvaged wreck—half the conduits fried, the stabilizer held together with zip ties and spite.

Final Session Complete. Thank you for 2,147 days.

The K-DRIVE’s AI giggled. “That was close!”